Calamites sp. Scho.,1938
- Citations total:
- 2
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| original | Permian | Turkey | Yahsiman,K. et al. Permian megaspores from Hazru (Diyarbakir). | 1959 | |
| original | Visean | USSR(Ukrainian SSR) | Ishchenko,A.M. et al. Megaspores of the Carboniferous age and their stratigraphic importance | 1962 |